Home / 2,835.15-4,253.68-887.40

Finding the Fourth Proportional to 2,835.15, 4,253.68 and 887.40

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Solution

The fourth proportional to 2,835.15, 4,253.68 and 887.40 is: 1,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.15 : 4,253.68 = 887.40 : x
  2. Step 2: Convert to fraction form
    2,835.15/4,253.68 = 887.40/x
  3. Step 3: Cross multiply
    2,835.15x = 4,253.68 × 887.40
  4. Step 4: Simplify right side
    2,835.15x = 3,774,716.74
  5. Step 5: Solve for x
    x = 3,774,716.74/2,835.15
  6. Step 6: Final answer
    x = 1,331.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.